Messier 83 was nicknamed the Southern Pinwheel Galaxy because of its prominent, very well defined spiral arms, which give the galaxy an appearance similar to the famous Messier 83 stretches across an area of over 40,000 light years, which is roughly 40 percent the size of the Milky Way Galaxy.This new Hubble image shows the scatterings of bright stars and thick dust that make up spiral galaxy Messier 83, otherwise known as the Southern Pinwheel Galaxy.
This came as a surprise to astronomers because a galaxy’s outer territory typically lacks high densities of star-forming materials. The peculiar dwarf galaxy NGC 5253 lies near M83, and the two likely interacted within the last billion years resulting in starburst activity in their central regions. Back in 2005, the telescope first photographed M83 over a shorter period of time. The Southern Pinwheel Galaxy, also known as Messier 83 (M83), is a barred spiral galaxy located in Hydra constellation. The image, taken in August 2009, provides a close-up view of the myriad stars near the galaxy’s core, the bright whitish region at far right. Astronomers had previously believed that these regions lacked the materials necessary for star formation to take place.Nicknamed the Southern Pinwheel, M83 is undergoing more rapid star formation than our own Milky Way galaxy, especially in its nucleus. Messier 83 has a "bar" of stars slicing through its centre, leading to its classification as a barred spiral.
It is one of the nearest and brightest spiral galaxies, and can even be seen in binoculars. The older populations of stars are not as blue. M83 a été cataloguée comme intermédiaire entre galaxie normale et galaxie barrée par Lorsqu'ils sont rouges, ces nœuds sont apparemment des Les régions bleutées correspondent à une population d'étoiles existantes, mais récemment formées (c'est-à-dire entre quelques millions et quelques dizaines de millions d'années). By continuing to use the site, you agree to the use of cookies. These bars are thought to act a bit like a funnel, channelling gas inwards towards the galaxy's centre. Les bandes de poussière peuvent être distinguées très à l'intérieur de la région centrale, dont le diamètre n'est que de 20". Like our neighbour, the If our Milky Way were to resemble this one, we certainly would be proud of our home! WFC3 identified the remnants of exploded stars. The radio data, colored here in red, reveal extended galactic arms of gaseous hydrogen atoms, which are raw ingredients for stars. The newest generations of stars are forming largely in clusters on the edges of the dark dust lanes, the backbone of the spiral arms.
The excavated regions give a colorful “Swiss cheese” appearance to the spiral arm. While the radio data highlight the galaxy’s long, octopus-like arms stretching far beyond its main spiral disk (red), the ultraviolet data reveal clusters of baby stars (blue) within the extended arms. The Milky Way also belongs to this category. These two groups are sometimes identified as one group and sometimes identified as two groups. It has the designation NGC 5236 in the New General Catalogue. The galaxy is undergoing more rapid star formation than the Milky Way, especially in its central region.The Southern Pinwheel Galaxy lies at the centre of the M83 Group, a subgroup of the Centaurus A/M83 Group, which includes the peculiar radio galaxy The central region of Messier 83 is quite unusual. It is roughly at the same distance to the southwest of Pi Hydrae (3°15’S, 6°20’W).Observers in southern latitudes can locate the galaxy by first finding Iota and Theta Centauri, stars marking the head of Messier 83 was discovered by the French astronomer Nicolas Louis de Lacaille on February 23, 1752 from the Cape of Good Hope. This deeper view shows more clusters of stars, as well as stars in the very remote reaches of the galaxy, up to 140,000 light-years away from its core. Those south of the equator can easily find the galaxy with small binoculars.The galaxy can be found by first locating the stars Gamma or Pi Hydrae.M83 lies to the northwest of Gamma Hydrae (6.5°N, 3°15’W), about a fistwidth away from the star. Messier 83 - M83 - Southern Pinwheel Galaxy (Barred Spiral Galaxy) M83, also known as the Southern Pinwheel Galaxy, is a barred spiral galaxy approximately 14.7 million light-years distant in the eastern section of Hydra. The spectrum of X-rays indicates that there is a pulsar within the remnant. These bars are thought to act a bit like a funnel, channeling gas inwards towards the galaxy’s center. M83 is located 15 million light-years away in the M83 was the first galaxy to be found beyond the Local Group.A double circumnuclear ring has been detected in the galaxy’s central region.Six supernovae have been observed in the Southern Pinwheel Galaxy in the past century: SN 1923A, SN 1945B, SN 1950B, SN 1957D, SN 1968L, and SN 1983N.